[WTS] Payment Gateway for any crypto-currency - Let merchants accept your coin

I'm offering to install a gateway to allow any merchant to accept your crypto-currency as payment.

This will allow several merchants to easily accept your coin as payment, increasing the usability and price of that coin.

tl;dr

For only BTC0.85 worth you can offer a complete gateway to allow any merchant to receive your coin as payment.
I also include a fully working PHP code so merchants can implement it as easily as possible.

How it works

You get a server and install your coin's daemon on it.
I install the gateway on your server and provide a sample PHP code for the user.
Any user can use your gateway to accept your coin as payment. Your gateway will generate a new address for every user's transaction.
Once a payment is received, it will automatically forward the payment to the address the user specified and will instantly notify the user's server.

The system works similarly to blockchain.info's API (https://blockchain.info/api/api_receive) so if a merchant is already implementing that to accept bitcoins
it will be extremely easy for them to start accepting your coin too.

While this system is similar to blockchain.info's, it's 100% my own code and it has an extra layer of security (added hashed signature to every notification, see Security below).

Here's the diagram of the final system:

Security

The code is PHP and MySQL so you can fully check it. However it's not open-source. You may not share it.
It has the same security measures as blockchain.info's API. For example, it allows merchants to add a security key in the URL to be called by the gateway. This prevents false calls faking a payment. This security system can fail if the attacker intercepts the communication between the gateway and the merchant.
Unique security: When the merchant asks for a new address, the gateways generates and sends a unique salt code which is saved by the merchant. Every call from the gateway to the merchant will be signed using that key.
You can set up the number of confirmations before forwarding the funds and notifying the merchant to prevent double spends.
The funds stay in your server only for a few minutes. It won't become the target of any hacker.

Working example

You can see a working example here:
https://api.captcoin.com/
(Note: Ticker and Address is not included.)

It allows any merchant to integrate CAPTcoin payments.

Easy to implement by the Merchants

I will include an open-source PHP sample code to allow merchants to easily implement the Gateway.

Here's an example:

https://github.com/CAPTcoin/receive_payment_php_demo

Which is running here:
https://api.captcoin.com/demo/

Requirements

You need to provide a server.
It must already run the daemon/wallet of your coin.
You must provide a domain or subdomain (ex: api.yourco.in).
Not required but highly recommended: You should have a trusted SSL certificate to enable HTTPS.

Cost

Temporarily for introduction the price is BTC0.85.
This is a small investment for a great added feature for your coin.

50% must be sent before I start working and 50% when it's done.
Or 100% can be sent to a trusted escrow before I start working.

If you have any question feel free to post or PM me.